1/*
2 *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include <cstdio>
12#include <cstdlib>
13#include <string>
14#include "third_party/googletest/src/include/gtest/gtest.h"
15#include "test/codec_factory.h"
16#include "test/encode_test_driver.h"
17#include "test/i420_video_source.h"
18#include "test/util.h"
19#include "test/md5_helper.h"
20#include "vpx_mem/vpx_mem.h"
21
22namespace {
23class TileIndependenceTest : public ::libvpx_test::EncoderTest,
24                             public ::libvpx_test::CodecTestWithParam<int> {
25 protected:
26  TileIndependenceTest()
27      : EncoderTest(GET_PARAM(0)),
28        md5_fw_order_(),
29        md5_inv_order_(),
30        n_tiles_(GET_PARAM(1)) {
31    init_flags_ = VPX_CODEC_USE_PSNR;
32    vpx_codec_dec_cfg_t cfg;
33    cfg.w = 704;
34    cfg.h = 144;
35    cfg.threads = 1;
36    fw_dec_ = codec_->CreateDecoder(cfg, 0);
37    inv_dec_ = codec_->CreateDecoder(cfg, 0);
38    inv_dec_->Control(VP9_INVERT_TILE_DECODE_ORDER, 1);
39  }
40
41  virtual ~TileIndependenceTest() {
42    delete fw_dec_;
43    delete inv_dec_;
44  }
45
46  virtual void SetUp() {
47    InitializeConfig();
48    SetMode(libvpx_test::kTwoPassGood);
49  }
50
51  virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video,
52                                  libvpx_test::Encoder *encoder) {
53    if (video->frame() == 1) {
54      encoder->Control(VP9E_SET_TILE_COLUMNS, n_tiles_);
55    }
56  }
57
58  void UpdateMD5(::libvpx_test::Decoder *dec, const vpx_codec_cx_pkt_t *pkt,
59                 ::libvpx_test::MD5 *md5) {
60    const vpx_codec_err_t res = dec->DecodeFrame(
61        reinterpret_cast<uint8_t*>(pkt->data.frame.buf), pkt->data.frame.sz);
62    if (res != VPX_CODEC_OK) {
63      abort_ = true;
64      ASSERT_EQ(VPX_CODEC_OK, res);
65    }
66    const vpx_image_t *img = dec->GetDxData().Next();
67    md5->Add(img);
68  }
69
70  virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
71    UpdateMD5(fw_dec_, pkt, &md5_fw_order_);
72    UpdateMD5(inv_dec_, pkt, &md5_inv_order_);
73  }
74
75  ::libvpx_test::MD5 md5_fw_order_, md5_inv_order_;
76  ::libvpx_test::Decoder *fw_dec_, *inv_dec_;
77
78 private:
79  int n_tiles_;
80};
81
82// run an encode with 2 or 4 tiles, and do the decode both in normal and
83// inverted tile ordering. Ensure that the MD5 of the output in both cases
84// is identical. If so, tiles are considered independent and the test passes.
85TEST_P(TileIndependenceTest, MD5Match) {
86  const vpx_rational timebase = { 33333333, 1000000000 };
87  cfg_.g_timebase = timebase;
88  cfg_.rc_target_bitrate = 500;
89  cfg_.g_lag_in_frames = 25;
90  cfg_.rc_end_usage = VPX_VBR;
91
92  libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 704, 144,
93                                     timebase.den, timebase.num, 0, 30);
94  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
95
96  const char *md5_fw_str = md5_fw_order_.Get();
97  const char *md5_inv_str = md5_inv_order_.Get();
98
99  // could use ASSERT_EQ(!memcmp(.., .., 16) here, but this gives nicer
100  // output if it fails. Not sure if it's helpful since it's really just
101  // a MD5...
102  ASSERT_STREQ(md5_fw_str, md5_inv_str);
103}
104
105VP9_INSTANTIATE_TEST_CASE(TileIndependenceTest, ::testing::Range(0, 2, 1));
106
107}  // namespace
108